\documentclass[a4paper,twoside,10pt]{report}
\usepackage[english]{babel}
\usepackage[latin1]{inputenc}
\usepackage{bbm}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage[top=3cm,left=3cm,right=3cm,bottom=2cm,foot=1cm]{geometry}
\usepackage{mdwlist}
\usepackage{hyperref}
\usepackage{placeins}
\usepackage{enumitem}
\usepackage{wasysym}
\usepackage{wallpaper}
%\renewcommand{\thesection}{\arabic{section}}

\def\headset{HeaDSET } % naam van het systeem, met trailing ' '
\newcommand{\HorLine}[2]{{\color{blue} \rule{#1}{#2}}}

\begin{document}
\ThisULCornerWallPaper{1.0}{images/manual_titlepage.png}
\input{titlepage.tex}

\setcounter{tocdepth}{4}
\tableofcontents

\include{manual_introduction}
\include{manual_installation}
\include{manual_camera}
\include{manual_create}
\include{manual_recorder}
\include{manual_play}
\include{manual_trouble}

\end{document}
